1. Department of Cardiology, “Niculae Stancioiu” Heart Institute, University of Medicine and Pharmacy “Iuliu Hatieganu”, Motilor 19-21, 400001 Cluj-Napoca, Romania
2. Department of Cardiology, Medizinische Universitätsklinik, Kantonsspital Baselland, Rheinstrasse 26, 4410 Liestal, Switzerland
3. Department of Internal Medicine, Invasive Cardiology Division, University of Szeged, Semmelweis u. 8, 6725 Szeged, Hungary
4. Vascular Surgery Department, University of Szeged, 6720 Szeged, Hungary